A. Brueggemann

collaborators

5 papers

hep-ex2024

Analysis of the dynamics of the decay $D^{+} \to K_{S}^{0} π^{0} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +649

The branching fraction of $D^{+} \to K_{S}^{0} π^{0} e^{+} ν_{e}$ is measured for the first time using $7.93 fb^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at the center-of-mass…

hep-ex2024

Observation of $η_{c}$ (1S, 2S) and $χ_{c J}$ decays to 2 $(π^{+} π^{-}) η$ via $ψ$ (3686) radiative transitions

BESIII Collaboration, M. Ablikim, M. N. Achasov +642

Based on $2.7 \times 1 0^{9} ψ (3686)$ decays collected with the BESIII detector, the radiative decay $ψ (3686) \to γ 2 (π^{+} π^{-}) η$ is investigated to measure properties of S- and P…

hep-ex2024

Observation of $D \to a_{0} (980) π$ in the decays $D^{0} \to π^{+} π^{-} η$ and $D^{+} \to π^{+} π^{0} η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

We report the first amplitude analysis of the decays $D^{0} \to π^{+} π^{-} η$ and $D^{+} \to π^{+} π^{0} η$ using a data sample taken with the BESIII detector at the center-…

hep-ex2024

Evidence of the $h_{c} \to K_{S}^{0} K^{+} π^{-} + c . c .$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +644

Based on $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected by the BESIII collaboration, evidence of the hadronic decay $h_{c} \to K_{S}^{0} K^{+} π^{-} + c . c .$ is found with a significance o…

hep-ex2024

Measurement of the Electromagnetic Transition Form-factors in the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +628

With a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events accumulated with the BESIII detector, we analyze the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-} (l = e,$ $μ)$ via the process $J/ψ\righ…

Analysis of the dynamics of the decay D+→KS0​π0e+νe​

Observation of ηc​(1S, 2S) and χcJ​ decays to 2(π+π−)η via ψ(3686) radiative transitions

Observation of D→a0​(980)π in the decays D0→π+π−η and D+→π+π0η

Evidence of the hc​→KS0​K+π−+c.c. decay

Measurement of the Electromagnetic Transition Form-factors in the decays η′→π+π−l+l−

Analysis of the dynamics of the decay $D^{+} \to K_{S}^{0} π^{0} e^{+} ν_{e}$

Observation of $η_{c}$ (1S, 2S) and $χ_{c J}$ decays to 2 $(π^{+} π^{-}) η$ via $ψ$ (3686) radiative transitions

Observation of $D \to a_{0} (980) π$ in the decays $D^{0} \to π^{+} π^{-} η$ and $D^{+} \to π^{+} π^{0} η$

Evidence of the $h_{c} \to K_{S}^{0} K^{+} π^{-} + c . c .$ decay

Measurement of the Electromagnetic Transition Form-factors in the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-}$